2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
15 #include <linux/kernel.h>
16 #include <linux/device.h>
17 #include <linux/if_ether.h>
18 #include <linux/interrupt.h>
19 #include <linux/list.h>
20 #include <linux/netdevice.h>
21 #include <linux/skbuff.h>
22 #include <linux/workqueue.h>
23 #include <linux/types.h>
24 #include <linux/spinlock.h>
25 #include <linux/etherdevice.h>
26 #include <linux/leds.h>
27 #include <linux/idr.h>
28 #include <net/ieee80211_radiotap.h>
29 #include <net/cfg80211.h>
30 #include <net/mac80211.h>
35 struct ieee80211_local
;
37 /* Maximum number of broadcast/multicast frames to buffer when some of the
38 * associated stations are using power saving. */
39 #define AP_MAX_BC_BUFFER 128
41 /* Maximum number of frames buffered to all STAs, including multicast frames.
42 * Note: increasing this limit increases the potential memory requirement. Each
43 * frame can be up to about 2 kB long. */
44 #define TOTAL_MAX_TX_BUFFER 512
46 /* Required encryption head and tailroom */
47 #define IEEE80211_ENCRYPT_HEADROOM 8
48 #define IEEE80211_ENCRYPT_TAILROOM 18
50 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
51 * reception of at least three fragmented frames. This limit can be increased
52 * by changing this define, at the cost of slower frame reassembly and
53 * increased memory use (about 2 kB of RAM per entry). */
54 #define IEEE80211_FRAGMENT_MAX 4
56 #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
57 #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
59 /* power level hasn't been configured (or set to automatic) */
60 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
63 * Some APs experience problems when working with U-APSD. Decrease the
64 * probability of that happening by using legacy mode for all ACs but VO.
65 * The AP that caused us trouble was a Cisco 4410N. It ignores our
66 * setting, and always treats non-VO ACs as legacy.
68 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
69 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
71 #define IEEE80211_DEFAULT_MAX_SP_LEN \
72 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
74 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
76 struct ieee80211_fragment_entry
{
77 unsigned long first_frag_time
;
79 unsigned int rx_queue
;
80 unsigned int last_frag
;
81 unsigned int extra_len
;
82 struct sk_buff_head skb_list
;
83 int ccmp
; /* Whether fragments were encrypted with CCMP */
84 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
88 struct ieee80211_bss
{
89 /* don't want to look up all the time */
91 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
98 unsigned long last_probe_resp
;
100 #ifdef CONFIG_MAC80211_MESH
106 #define IEEE80211_MAX_SUPP_RATES 32
107 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
108 size_t supp_rates_len
;
111 * During association, we save an ERP value from a probe response so
112 * that we can feed ERP info to the driver when handling the
113 * association completes. these fields probably won't be up-to-date
114 * otherwise, you probably don't want to use them.
119 /* Keep track of the corruption of the last beacon/probe response. */
122 /* Keep track of what bits of information we have valid info for. */
127 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
128 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
129 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
131 * These are bss flags that are attached to a bss in the
132 * @corrupt_data field of &struct ieee80211_bss.
134 enum ieee80211_bss_corrupt_data_flags
{
135 IEEE80211_BSS_CORRUPT_BEACON
= BIT(0),
136 IEEE80211_BSS_CORRUPT_PROBE_RESP
= BIT(1)
140 * enum ieee80211_valid_data_flags - BSS valid data flags
141 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
142 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
143 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
145 * These are bss flags that are attached to a bss in the
146 * @valid_data field of &struct ieee80211_bss. They show which parts
147 * of the data structure were recieved as a result of an un-corrupted
148 * beacon/probe response.
150 enum ieee80211_bss_valid_data_flags
{
151 IEEE80211_BSS_VALID_WMM
= BIT(1),
152 IEEE80211_BSS_VALID_RATES
= BIT(2),
153 IEEE80211_BSS_VALID_ERP
= BIT(3)
156 static inline u8
*bss_mesh_cfg(struct ieee80211_bss
*bss
)
158 #ifdef CONFIG_MAC80211_MESH
159 return bss
->mesh_cfg
;
164 static inline u8
*bss_mesh_id(struct ieee80211_bss
*bss
)
166 #ifdef CONFIG_MAC80211_MESH
172 static inline u8
bss_mesh_id_len(struct ieee80211_bss
*bss
)
174 #ifdef CONFIG_MAC80211_MESH
175 return bss
->mesh_id_len
;
181 typedef unsigned __bitwise__ ieee80211_tx_result
;
182 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
183 #define TX_DROP ((__force ieee80211_tx_result) 1u)
184 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
186 #define IEEE80211_TX_UNICAST BIT(1)
187 #define IEEE80211_TX_PS_BUFFERED BIT(2)
189 struct ieee80211_tx_data
{
191 struct sk_buff_head skbs
;
192 struct ieee80211_local
*local
;
193 struct ieee80211_sub_if_data
*sdata
;
194 struct sta_info
*sta
;
195 struct ieee80211_key
*key
;
201 typedef unsigned __bitwise__ ieee80211_rx_result
;
202 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
203 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
204 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
205 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
208 * enum ieee80211_packet_rx_flags - packet RX flags
209 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
210 * (incl. multicast frames)
211 * @IEEE80211_RX_FRAGMENTED: fragmented frame
212 * @IEEE80211_RX_AMSDU: a-MSDU packet
213 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
214 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
216 * These are per-frame flags that are attached to a frame in the
217 * @rx_flags field of &struct ieee80211_rx_status.
219 enum ieee80211_packet_rx_flags
{
220 IEEE80211_RX_RA_MATCH
= BIT(1),
221 IEEE80211_RX_FRAGMENTED
= BIT(2),
222 IEEE80211_RX_AMSDU
= BIT(3),
223 IEEE80211_RX_MALFORMED_ACTION_FRM
= BIT(4),
224 IEEE80211_RX_DEFERRED_RELEASE
= BIT(5),
228 * enum ieee80211_rx_flags - RX data flags
230 * @IEEE80211_RX_CMNTR: received on cooked monitor already
231 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
232 * to cfg80211_report_obss_beacon().
234 * These flags are used across handling multiple interfaces
235 * for a single frame.
237 enum ieee80211_rx_flags
{
238 IEEE80211_RX_CMNTR
= BIT(0),
239 IEEE80211_RX_BEACON_REPORTED
= BIT(1),
242 struct ieee80211_rx_data
{
244 struct ieee80211_local
*local
;
245 struct ieee80211_sub_if_data
*sdata
;
246 struct sta_info
*sta
;
247 struct ieee80211_key
*key
;
252 * Index into sequence numbers array, 0..16
253 * since the last (16) is used for non-QoS,
254 * will be 16 on non-QoS frames.
259 * Index into the security IV/PN arrays, 0..16
260 * since the last (16) is used for CCMP-encrypted
261 * management frames, will be set to 16 on mgmt
262 * frames and 0 on non-QoS frames.
272 int head_len
, tail_len
;
273 struct rcu_head rcu_head
;
277 struct rcu_head rcu_head
;
283 /* yes, this looks ugly, but guarantees that we can later use
285 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
286 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
287 struct sk_buff_head bc_buf
;
288 atomic_t num_sta_ps
; /* number of stations in PS mode */
293 struct ieee80211_if_ap
{
294 struct beacon_data __rcu
*beacon
;
295 struct probe_resp __rcu
*probe_resp
;
297 struct list_head vlans
;
300 atomic_t num_mcast_sta
; /* number of stations receiving multicast */
303 struct ieee80211_if_wds
{
304 struct sta_info
*sta
;
305 u8 remote_addr
[ETH_ALEN
];
308 struct ieee80211_if_vlan
{
309 struct list_head list
;
311 /* used for all tx if the VLAN is configured to 4-addr mode */
312 struct sta_info __rcu
*sta
;
316 __u32 fwded_mcast
; /* Mesh forwarded multicast frames */
317 __u32 fwded_unicast
; /* Mesh forwarded unicast frames */
318 __u32 fwded_frames
; /* Mesh total forwarded frames */
319 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
320 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
321 __u32 dropped_frames_congestion
;/* Not forwarded due to congestion */
324 #define PREQ_Q_F_START 0x1
325 #define PREQ_Q_F_REFRESH 0x2
326 struct mesh_preq_queue
{
327 struct list_head list
;
333 #define IEEE80211_ROC_MIN_LEFT 1
335 #define IEEE80211_ROC_MIN_LEFT (HZ/100)
338 struct ieee80211_roc_work
{
339 struct list_head list
;
340 struct list_head dependents
;
342 struct delayed_work work
;
344 struct ieee80211_sub_if_data
*sdata
;
346 struct ieee80211_channel
*chan
;
348 bool started
, abort
, hw_begun
, notified
;
350 unsigned long hw_start_time
;
352 u32 duration
, req_duration
;
353 struct sk_buff
*frame
;
354 u64 cookie
, mgmt_tx_cookie
;
357 /* flags used in struct ieee80211_if_managed.flags */
358 enum ieee80211_sta_flags
{
359 IEEE80211_STA_BEACON_POLL
= BIT(0),
360 IEEE80211_STA_CONNECTION_POLL
= BIT(1),
361 IEEE80211_STA_CONTROL_PORT
= BIT(2),
362 IEEE80211_STA_DISABLE_HT
= BIT(4),
363 IEEE80211_STA_CSA_RECEIVED
= BIT(5),
364 IEEE80211_STA_MFP_ENABLED
= BIT(6),
365 IEEE80211_STA_UAPSD_ENABLED
= BIT(7),
366 IEEE80211_STA_NULLFUNC_ACKED
= BIT(8),
367 IEEE80211_STA_RESET_SIGNAL_AVE
= BIT(9),
368 IEEE80211_STA_DISABLE_40MHZ
= BIT(10),
369 IEEE80211_STA_DISABLE_VHT
= BIT(11),
370 IEEE80211_STA_DISABLE_80P80MHZ
= BIT(12),
371 IEEE80211_STA_DISABLE_160MHZ
= BIT(13),
374 struct ieee80211_mgd_auth_data
{
375 struct cfg80211_bss
*bss
;
376 unsigned long timeout
;
378 u16 algorithm
, expected_transaction
;
380 u8 key
[WLAN_KEY_LEN_WEP104
];
384 u16 sae_trans
, sae_status
;
389 struct ieee80211_mgd_assoc_data
{
390 struct cfg80211_bss
*bss
;
391 const u8
*supp_rates
;
393 unsigned long timeout
;
397 u8 prev_bssid
[ETH_ALEN
];
398 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
412 struct ieee80211_if_managed
{
413 struct timer_list timer
;
414 struct timer_list conn_mon_timer
;
415 struct timer_list bcn_mon_timer
;
416 struct timer_list chswitch_timer
;
417 struct work_struct monitor_work
;
418 struct work_struct chswitch_work
;
419 struct work_struct beacon_connection_loss_work
;
420 struct work_struct csa_connection_drop_work
;
422 unsigned long beacon_timeout
;
423 unsigned long probe_timeout
;
424 int probe_send_count
;
425 bool nullfunc_failed
;
428 struct cfg80211_bss
*associated
;
429 struct ieee80211_mgd_auth_data
*auth_data
;
430 struct ieee80211_mgd_assoc_data
*assoc_data
;
436 unsigned long timers_running
; /* used for quiesce/restart */
437 bool powersave
; /* powersave requested for this iface */
438 bool broken_ap
; /* AP is broken -- turn off powersave */
440 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
441 driver_smps_mode
; /* smps mode request */
443 struct work_struct request_smps_work
;
447 bool beacon_crc_valid
;
451 IEEE80211_MFP_DISABLED
,
452 IEEE80211_MFP_OPTIONAL
,
453 IEEE80211_MFP_REQUIRED
454 } mfp
; /* management frame protection */
457 * Bitmask of enabled u-apsd queues,
458 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
461 unsigned int uapsd_queues
;
464 * Maximum number of buffered frames AP can deliver during a
465 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
466 * Needs a new association to take effect.
468 unsigned int uapsd_max_sp_len
;
470 int wmm_last_param_set
;
476 /* Signal strength from the last Beacon frame in the current BSS. */
477 int last_beacon_signal
;
480 * Weighted average of the signal strength from Beacon frames in the
481 * current BSS. This is in units of 1/16 of the signal unit to maintain
482 * accuracy and to speed up calculations, i.e., the value need to be
483 * divided by 16 to get the actual value.
485 int ave_beacon_signal
;
488 * Number of Beacon frames used in ave_beacon_signal. This can be used
489 * to avoid generating less reliable cqm events that would be based
490 * only on couple of received frames.
492 unsigned int count_beacon_signal
;
495 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
496 * that triggered a cqm event. 0 indicates that no event has been
497 * generated for the current association.
499 int last_cqm_event_signal
;
502 * State variables for keeping track of RSSI of the AP currently
503 * connected to and informing driver when RSSI has gone
504 * below/above a certain threshold.
506 int rssi_min_thold
, rssi_max_thold
;
507 int last_ave_beacon_signal
;
509 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
510 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
513 struct ieee80211_if_ibss
{
514 struct timer_list timer
;
518 unsigned long last_scan_completed
;
529 unsigned int auth_frame_registrations
;
531 u8 bssid
[ETH_ALEN
] __aligned(2);
532 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
535 struct ieee80211_channel
*channel
;
536 enum nl80211_channel_type channel_type
;
538 unsigned long ibss_join_req
;
539 /* probe response/beacon for IBSS */
540 struct sk_buff __rcu
*presp
;
543 spinlock_t incomplete_lock
;
544 struct list_head incomplete_stations
;
547 IEEE80211_IBSS_MLME_SEARCH
,
548 IEEE80211_IBSS_MLME_JOINED
,
553 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
555 * these declarations define the interface, which enables
556 * vendor-specific mesh synchronization
559 struct ieee802_11_elems
;
560 struct ieee80211_mesh_sync_ops
{
561 void (*rx_bcn_presp
)(struct ieee80211_sub_if_data
*sdata
,
563 struct ieee80211_mgmt
*mgmt
,
564 struct ieee802_11_elems
*elems
,
565 struct ieee80211_rx_status
*rx_status
);
566 void (*adjust_tbtt
)(struct ieee80211_sub_if_data
*sdata
);
567 /* add other framework functions here */
570 struct ieee80211_if_mesh
{
571 struct timer_list housekeeping_timer
;
572 struct timer_list mesh_path_timer
;
573 struct timer_list mesh_path_root_timer
;
575 unsigned long timers_running
;
577 unsigned long wrkq_flags
;
579 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
581 /* Active Path Selection Protocol Identifier */
583 /* Active Path Selection Metric Identifier */
585 /* Congestion Control Mode Identifier */
587 /* Synchronization Protocol Identifier */
589 /* Authentication Protocol Identifier */
591 /* Local mesh Sequence Number */
593 /* Last used PREQ ID */
596 /* Timestamp of last SN update */
597 unsigned long last_sn_update
;
598 /* Time when it's ok to send next PERR */
599 unsigned long next_perr
;
600 /* Timestamp of last PREQ sent */
601 unsigned long last_preq
;
602 struct mesh_rmc
*rmc
;
603 spinlock_t mesh_preq_queue_lock
;
604 struct mesh_preq_queue preq_queue
;
606 struct mesh_stats mshstats
;
607 struct mesh_config mshcfg
;
608 atomic_t estab_plinks
;
610 bool accepting_plinks
;
615 IEEE80211_MESH_SEC_NONE
= 0x0,
616 IEEE80211_MESH_SEC_AUTHED
= 0x1,
617 IEEE80211_MESH_SEC_SECURED
= 0x2,
619 /* Extensible Synchronization Framework */
620 const struct ieee80211_mesh_sync_ops
*sync_ops
;
621 s64 sync_offset_clockdrift_max
;
622 spinlock_t sync_offset_lock
;
626 #ifdef CONFIG_MAC80211_MESH
627 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
628 do { (msh)->mshstats.name++; } while (0)
630 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
635 * enum ieee80211_sub_if_data_flags - virtual interface flags
637 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
638 * @IEEE80211_SDATA_PROMISC: interface is promisc
639 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
640 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
641 * associated stations and deliver multicast frames both
642 * back to wireless media and to the local net stack.
643 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
644 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
646 enum ieee80211_sub_if_data_flags
{
647 IEEE80211_SDATA_ALLMULTI
= BIT(0),
648 IEEE80211_SDATA_PROMISC
= BIT(1),
649 IEEE80211_SDATA_OPERATING_GMODE
= BIT(2),
650 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
651 IEEE80211_SDATA_DISCONNECT_RESUME
= BIT(4),
652 IEEE80211_SDATA_IN_DRIVER
= BIT(5),
656 * enum ieee80211_sdata_state_bits - virtual interface state bits
657 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
658 * mirrors netif_running() but is separate for interface type
659 * change handling while the interface is up
660 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
661 * mode, so queues are stopped
663 enum ieee80211_sdata_state_bits
{
665 SDATA_STATE_OFFCHANNEL
,
669 * enum ieee80211_chanctx_mode - channel context configuration mode
671 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
672 * multiple interfaces
673 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
674 * only by a single interface. This can be used for example for
675 * non-fixed channel IBSS.
677 enum ieee80211_chanctx_mode
{
678 IEEE80211_CHANCTX_SHARED
,
679 IEEE80211_CHANCTX_EXCLUSIVE
682 struct ieee80211_chanctx
{
683 struct list_head list
;
684 struct rcu_head rcu_head
;
686 enum ieee80211_chanctx_mode mode
;
689 struct ieee80211_chanctx_conf conf
;
692 struct ieee80211_sub_if_data
{
693 struct list_head list
;
695 struct wireless_dev wdev
;
698 struct list_head key_list
;
700 /* count for keys needing tailroom space allocation */
701 int crypto_tx_tailroom_needed_cnt
;
703 struct net_device
*dev
;
704 struct ieee80211_local
*local
;
710 int drop_unencrypted
;
714 /* to detect idle changes */
717 /* Fragment table for host-based reassembly */
718 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
719 unsigned int fragment_next
;
721 /* TID bitmap for NoAck policy */
724 /* bit field of ACM bits (BIT(802.1D tag)) */
727 struct ieee80211_key __rcu
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
728 struct ieee80211_key __rcu
*default_unicast_key
;
729 struct ieee80211_key __rcu
*default_multicast_key
;
730 struct ieee80211_key __rcu
*default_mgmt_key
;
733 __be16 control_port_protocol
;
734 bool control_port_no_encrypt
;
736 struct ieee80211_tx_queue_params tx_conf
[IEEE80211_NUM_ACS
];
738 /* used to reconfigure hardware SM PS */
739 struct work_struct recalc_smps
;
741 struct work_struct work
;
742 struct sk_buff_head skb_queue
;
744 bool arp_filter_state
;
747 enum ieee80211_smps_mode smps_mode
;
749 int user_power_level
; /* in dBm */
750 int ap_power_level
; /* in dBm */
753 * AP this belongs to: self in AP mode and
754 * corresponding AP in VLAN mode, NULL for
755 * all others (might be needed later in IBSS)
757 struct ieee80211_if_ap
*bss
;
759 /* bitmap of allowed (non-MCS) rate indexes for rate control */
760 u32 rc_rateidx_mask
[IEEE80211_NUM_BANDS
];
761 u8 rc_rateidx_mcs_mask
[IEEE80211_NUM_BANDS
][IEEE80211_HT_MCS_MASK_LEN
];
764 struct ieee80211_if_ap ap
;
765 struct ieee80211_if_wds wds
;
766 struct ieee80211_if_vlan vlan
;
767 struct ieee80211_if_managed mgd
;
768 struct ieee80211_if_ibss ibss
;
769 struct ieee80211_if_mesh mesh
;
773 spinlock_t cleanup_stations_lock
;
774 struct list_head cleanup_stations
;
775 struct work_struct cleanup_stations_wk
;
777 #ifdef CONFIG_MAC80211_DEBUGFS
780 struct dentry
*subdir_stations
;
781 struct dentry
*default_unicast_key
;
782 struct dentry
*default_multicast_key
;
783 struct dentry
*default_mgmt_key
;
786 /* must be last, dynamically sized area in this! */
787 struct ieee80211_vif vif
;
791 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
793 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
796 static inline enum ieee80211_band
797 ieee80211_get_sdata_band(struct ieee80211_sub_if_data
*sdata
)
799 enum ieee80211_band band
= IEEE80211_BAND_2GHZ
;
800 struct ieee80211_chanctx_conf
*chanctx_conf
;
803 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
804 if (!WARN_ON(!chanctx_conf
))
805 band
= chanctx_conf
->def
.chan
->band
;
811 enum sdata_queue_type
{
812 IEEE80211_SDATA_QUEUE_TYPE_FRAME
= 0,
813 IEEE80211_SDATA_QUEUE_AGG_START
= 1,
814 IEEE80211_SDATA_QUEUE_AGG_STOP
= 2,
818 IEEE80211_RX_MSG
= 1,
819 IEEE80211_TX_STATUS_MSG
= 2,
820 IEEE80211_EOSP_MSG
= 3,
823 struct skb_eosp_msg_data
{
824 u8 sta
[ETH_ALEN
], iface
[ETH_ALEN
];
827 enum queue_stop_reason
{
828 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
829 IEEE80211_QUEUE_STOP_REASON_PS
,
830 IEEE80211_QUEUE_STOP_REASON_CSA
,
831 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
832 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
833 IEEE80211_QUEUE_STOP_REASON_SKB_ADD
,
836 #ifdef CONFIG_MAC80211_LEDS
837 struct tpt_led_trigger
{
838 struct led_trigger trig
;
840 const struct ieee80211_tpt_blink
*blink_table
;
841 unsigned int blink_table_len
;
842 struct timer_list timer
;
843 unsigned long prev_traffic
;
844 unsigned long tx_bytes
, rx_bytes
;
845 unsigned int active
, want
;
851 * mac80211 scan flags - currently active scan mode
853 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
854 * well be on the operating channel
855 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
856 * determine if we are on the operating channel or not
857 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
858 * channel. This should not interrupt normal traffic.
859 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
860 * that the scan completed.
861 * @SCAN_ABORTED: Set for our scan work function when the driver reported
862 * a scan complete for an aborted scan.
867 SCAN_ONCHANNEL_SCANNING
,
873 * enum mac80211_scan_state - scan state machine states
875 * @SCAN_DECISION: Main entry point to the scan state machine, this state
876 * determines if we should keep on scanning or switch back to the
878 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
879 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
880 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
882 * @SCAN_RESUME: Resume the scan and scan the next channel
883 * @SCAN_ABORT: Abort the scan and go back to operating channel
885 enum mac80211_scan_state
{
894 struct ieee80211_local
{
895 /* embed the driver visible part.
896 * don't cast (use the static inlines below), but we keep
897 * it first anyway so they become a no-op */
898 struct ieee80211_hw hw
;
900 const struct ieee80211_ops
*ops
;
903 * private workqueue to mac80211. mac80211 makes this accessible
904 * via ieee80211_queue_work()
906 struct workqueue_struct
*workqueue
;
908 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
909 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
910 spinlock_t queue_stop_reason_lock
;
913 int monitors
, cooked_mntrs
;
914 /* number of interfaces with corresponding FIF_ flags */
915 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
, fif_pspoll
,
918 unsigned int filter_flags
; /* FIF_* */
920 bool wiphy_ciphers_allocated
;
924 /* protects the aggregated multicast list and filter calls */
925 spinlock_t filter_lock
;
927 /* used for uploading changed mc list */
928 struct work_struct reconfig_filter
;
930 /* aggregated multicast list */
931 struct netdev_hw_addr_list mc_list
;
933 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
936 * suspended is true if we finished all the suspend _and_ we have
937 * not yet come up from resume. This is to be used by mac80211
938 * to ensure driver sanity during suspend and mac80211's own
939 * sanity. It can eventually be used for WoW as well.
944 * Resuming is true while suspended, but when we're reprogramming the
945 * hardware -- at that time it's allowed to use ieee80211_queue_work()
946 * again even though some other parts of the stack are still suspended
947 * and we still drop received frames to avoid waking the stack.
952 * quiescing is true during the suspend process _only_ to
953 * ease timer cancelling etc.
957 /* device is started */
960 /* device is during a HW reconfig */
963 /* wowlan is enabled -- don't reconfig on resume */
966 /* number of RX chains the hardware has */
969 int tx_headroom
; /* required headroom for hardware/radiotap */
971 /* Tasklet and skb queue to process calls from IRQ mode. All frames
972 * added to skb_queue will be processed, but frames in
973 * skb_queue_unreliable may be dropped if the total length of these
974 * queues increases over the limit. */
975 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
976 struct tasklet_struct tasklet
;
977 struct sk_buff_head skb_queue
;
978 struct sk_buff_head skb_queue_unreliable
;
981 * Internal FIFO queue which is shared between multiple rx path
982 * stages. Its main task is to provide a serialization mechanism,
983 * so all rx handlers can enjoy having exclusive access to their
984 * private data structures.
986 struct sk_buff_head rx_skb_queue
;
987 bool running_rx_handler
; /* protected by rx_skb_queue.lock */
991 * The mutex only protects the list, hash table and
992 * counter, reads are done with RCU.
994 struct mutex sta_mtx
;
996 unsigned long num_sta
;
997 struct list_head sta_list
;
998 struct sta_info __rcu
*sta_hash
[STA_HASH_SIZE
];
999 struct timer_list sta_cleanup
;
1002 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
1003 struct tasklet_struct tx_pending_tasklet
;
1005 atomic_t agg_queue_stop
[IEEE80211_MAX_QUEUES
];
1007 /* number of interfaces with corresponding IFF_ flags */
1008 atomic_t iff_allmultis
, iff_promiscs
;
1010 struct rate_control_ref
*rate_ctrl
;
1012 struct crypto_cipher
*wep_tx_tfm
;
1013 struct crypto_cipher
*wep_rx_tfm
;
1017 struct list_head interfaces
;
1018 struct mutex iflist_mtx
;
1021 * Key mutex, protects sdata's key_list and sta_info's
1022 * key pointers (write access, they're RCU.)
1024 struct mutex key_mtx
;
1026 /* mutex for scan and work locking */
1029 /* Scanning and BSS list */
1030 unsigned long scanning
;
1031 struct cfg80211_ssid scan_ssid
;
1032 struct cfg80211_scan_request
*int_scan_req
;
1033 struct cfg80211_scan_request
*scan_req
, *hw_scan_req
;
1034 struct ieee80211_channel
*scan_channel
;
1035 enum ieee80211_band hw_scan_band
;
1036 int scan_channel_idx
;
1038 int hw_scan_ies_bufsize
;
1040 struct work_struct sched_scan_stopped_work
;
1041 struct ieee80211_sub_if_data __rcu
*sched_scan_sdata
;
1043 unsigned long leave_oper_channel_time
;
1044 enum mac80211_scan_state next_scan_state
;
1045 struct delayed_work scan_work
;
1046 struct ieee80211_sub_if_data __rcu
*scan_sdata
;
1047 struct ieee80211_channel
*csa_channel
;
1048 /* For backward compatibility only -- do not use */
1049 struct ieee80211_channel
*_oper_channel
;
1050 enum nl80211_channel_type _oper_channel_type
;
1052 /* Temporary remain-on-channel for off-channel operations */
1053 struct ieee80211_channel
*tmp_channel
;
1055 /* channel contexts */
1056 struct list_head chanctx_list
;
1057 struct mutex chanctx_mtx
;
1060 /* dot11CountersTable */
1061 u32 dot11TransmittedFragmentCount
;
1062 u32 dot11MulticastTransmittedFrameCount
;
1063 u32 dot11FailedCount
;
1064 u32 dot11RetryCount
;
1065 u32 dot11MultipleRetryCount
;
1066 u32 dot11FrameDuplicateCount
;
1067 u32 dot11ReceivedFragmentCount
;
1068 u32 dot11MulticastReceivedFrameCount
;
1069 u32 dot11TransmittedFrameCount
;
1071 #ifdef CONFIG_MAC80211_LEDS
1072 int tx_led_counter
, rx_led_counter
;
1073 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
1074 struct tpt_led_trigger
*tpt_led_trigger
;
1075 char tx_led_name
[32], rx_led_name
[32],
1076 assoc_led_name
[32], radio_led_name
[32];
1079 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1080 /* TX/RX handler statistics */
1081 unsigned int tx_handlers_drop
;
1082 unsigned int tx_handlers_queued
;
1083 unsigned int tx_handlers_drop_unencrypted
;
1084 unsigned int tx_handlers_drop_fragment
;
1085 unsigned int tx_handlers_drop_wep
;
1086 unsigned int tx_handlers_drop_not_assoc
;
1087 unsigned int tx_handlers_drop_unauth_port
;
1088 unsigned int rx_handlers_drop
;
1089 unsigned int rx_handlers_queued
;
1090 unsigned int rx_handlers_drop_nullfunc
;
1091 unsigned int rx_handlers_drop_defrag
;
1092 unsigned int rx_handlers_drop_short
;
1093 unsigned int tx_expand_skb_head
;
1094 unsigned int tx_expand_skb_head_cloned
;
1095 unsigned int rx_expand_skb_head
;
1096 unsigned int rx_expand_skb_head2
;
1097 unsigned int rx_handlers_fragments
;
1098 unsigned int tx_status_drop
;
1099 #define I802_DEBUG_INC(c) (c)++
1100 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1101 #define I802_DEBUG_INC(c) do { } while (0)
1102 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1105 int total_ps_buffered
; /* total number of all buffered unicast and
1106 * multicast packets for power saving stations
1110 bool offchannel_ps_enabled
;
1112 * PS can only be enabled when we have exactly one managed
1113 * interface (and monitors) in PS, this then points there.
1115 struct ieee80211_sub_if_data
*ps_sdata
;
1116 struct work_struct dynamic_ps_enable_work
;
1117 struct work_struct dynamic_ps_disable_work
;
1118 struct timer_list dynamic_ps_timer
;
1119 struct notifier_block network_latency_notifier
;
1120 struct notifier_block ifa_notifier
;
1123 * The dynamic ps timeout configured from user space via WEXT -
1124 * this will override whatever chosen by mac80211 internally.
1126 int dynamic_ps_forced_timeout
;
1127 int dynamic_ps_user_timeout
;
1128 bool disable_dynamic_ps
;
1130 int user_power_level
; /* in dBm, for all interfaces */
1132 enum ieee80211_smps_mode smps_mode
;
1134 struct work_struct restart_work
;
1136 #ifdef CONFIG_MAC80211_DEBUGFS
1137 struct local_debugfsdentries
{
1138 struct dentry
*rcdir
;
1139 struct dentry
*keys
;
1144 * Remain-on-channel support
1146 struct list_head roc_list
;
1147 struct work_struct hw_roc_start
, hw_roc_done
;
1148 unsigned long hw_roc_start_time
;
1149 u64 roc_cookie_counter
;
1151 struct idr ack_status_frames
;
1152 spinlock_t ack_status_lock
;
1154 struct ieee80211_sub_if_data __rcu
*p2p_sdata
;
1156 /* dummy netdev for use w/ NAPI */
1157 struct net_device napi_dev
;
1159 struct napi_struct napi
;
1161 /* virtual monitor interface */
1162 struct ieee80211_sub_if_data __rcu
*monitor_sdata
;
1163 struct cfg80211_chan_def monitor_chandef
;
1166 static inline struct ieee80211_sub_if_data
*
1167 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
1169 return netdev_priv(dev
);
1172 static inline struct ieee80211_sub_if_data
*
1173 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev
*wdev
)
1175 return container_of(wdev
, struct ieee80211_sub_if_data
, wdev
);
1178 /* this struct represents 802.11n's RA/TID combination */
1179 struct ieee80211_ra_tid
{
1184 /* Parsed Information Elements */
1185 struct ieee802_11_elems
{
1189 /* pointers to IEs */
1195 struct ieee80211_tim_ie
*tim
;
1204 struct ieee80211_ht_cap
*ht_cap_elem
;
1205 struct ieee80211_ht_operation
*ht_operation
;
1206 struct ieee80211_vht_cap
*vht_cap_elem
;
1207 struct ieee80211_vht_operation
*vht_operation
;
1208 struct ieee80211_meshconf_ie
*mesh_config
;
1214 struct ieee80211_rann_ie
*rann
;
1215 struct ieee80211_channel_sw_ie
*ch_switch_ie
;
1217 u8
*pwr_constr_elem
;
1218 u8
*quiet_elem
; /* first quite element */
1221 /* length of them, respectively */
1233 u8 ext_supp_rates_len
;
1241 u8 country_elem_len
;
1243 u8 num_of_quiet_elem
; /* can be more the one */
1246 /* whether a parse error occurred while retrieving these elements */
1250 static inline struct ieee80211_local
*hw_to_local(
1251 struct ieee80211_hw
*hw
)
1253 return container_of(hw
, struct ieee80211_local
, hw
);
1257 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
1259 return ether_addr_equal(raddr
, addr
) ||
1260 is_broadcast_ether_addr(raddr
);
1264 ieee80211_have_rx_timestamp(struct ieee80211_rx_status
*status
)
1266 WARN_ON_ONCE(status
->flag
& RX_FLAG_MACTIME_START
&&
1267 status
->flag
& RX_FLAG_MACTIME_END
);
1268 return status
->flag
& (RX_FLAG_MACTIME_START
| RX_FLAG_MACTIME_END
);
1271 u64
ieee80211_calculate_rx_timestamp(struct ieee80211_local
*local
,
1272 struct ieee80211_rx_status
*status
,
1273 unsigned int mpdu_len
,
1274 unsigned int mpdu_offset
);
1275 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
1276 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
1277 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
1279 void ieee80211_configure_filter(struct ieee80211_local
*local
);
1280 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
1283 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1284 int ieee80211_mgd_auth(struct ieee80211_sub_if_data
*sdata
,
1285 struct cfg80211_auth_request
*req
);
1286 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data
*sdata
,
1287 struct cfg80211_assoc_request
*req
);
1288 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data
*sdata
,
1289 struct cfg80211_deauth_request
*req
);
1290 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data
*sdata
,
1291 struct cfg80211_disassoc_request
*req
);
1292 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
1293 struct ieee80211_sub_if_data
*sdata
);
1294 void ieee80211_recalc_ps(struct ieee80211_local
*local
, s32 latency
);
1295 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data
*sdata
);
1296 int ieee80211_max_network_latency(struct notifier_block
*nb
,
1297 unsigned long data
, void *dummy
);
1298 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data
*sdata
);
1299 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data
*sdata
,
1300 struct ieee80211_channel_sw_ie
*sw_elem
,
1301 struct ieee80211_bss
*bss
,
1303 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data
*sdata
);
1304 void ieee80211_sta_restart(struct ieee80211_sub_if_data
*sdata
);
1305 void ieee80211_sta_work(struct ieee80211_sub_if_data
*sdata
);
1306 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1307 struct sk_buff
*skb
);
1308 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data
*sdata
);
1309 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data
*sdata
);
1310 void ieee80211_mgd_stop(struct ieee80211_sub_if_data
*sdata
);
1313 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
1314 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1315 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data
*sdata
,
1316 const u8
*bssid
, const u8
*addr
, u32 supp_rates
);
1317 int ieee80211_ibss_join(struct ieee80211_sub_if_data
*sdata
,
1318 struct cfg80211_ibss_params
*params
);
1319 int ieee80211_ibss_leave(struct ieee80211_sub_if_data
*sdata
);
1320 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data
*sdata
);
1321 void ieee80211_ibss_restart(struct ieee80211_sub_if_data
*sdata
);
1322 void ieee80211_ibss_work(struct ieee80211_sub_if_data
*sdata
);
1323 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1324 struct sk_buff
*skb
);
1327 void ieee80211_mesh_work(struct ieee80211_sub_if_data
*sdata
);
1328 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1329 struct sk_buff
*skb
);
1331 /* scan/BSS handling */
1332 void ieee80211_scan_work(struct work_struct
*work
);
1333 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data
*sdata
,
1334 const u8
*ssid
, u8 ssid_len
,
1335 struct ieee80211_channel
*chan
);
1336 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
1337 struct cfg80211_scan_request
*req
);
1338 void ieee80211_scan_cancel(struct ieee80211_local
*local
);
1339 void ieee80211_run_deferred_scan(struct ieee80211_local
*local
);
1340 void ieee80211_scan_rx(struct ieee80211_local
*local
, struct sk_buff
*skb
);
1342 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
1343 struct ieee80211_bss
*
1344 ieee80211_bss_info_update(struct ieee80211_local
*local
,
1345 struct ieee80211_rx_status
*rx_status
,
1346 struct ieee80211_mgmt
*mgmt
,
1348 struct ieee802_11_elems
*elems
,
1349 struct ieee80211_channel
*channel
,
1351 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
1352 struct ieee80211_bss
*bss
);
1354 /* scheduled scan handling */
1355 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1356 struct cfg80211_sched_scan_request
*req
);
1357 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data
*sdata
);
1358 void ieee80211_sched_scan_stopped_work(struct work_struct
*work
);
1360 /* off-channel helpers */
1361 void ieee80211_offchannel_stop_vifs(struct ieee80211_local
*local
);
1362 void ieee80211_offchannel_return(struct ieee80211_local
*local
);
1363 void ieee80211_roc_setup(struct ieee80211_local
*local
);
1364 void ieee80211_start_next_roc(struct ieee80211_local
*local
);
1365 void ieee80211_roc_purge(struct ieee80211_sub_if_data
*sdata
);
1366 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work
*roc
);
1367 void ieee80211_sw_roc_work(struct work_struct
*work
);
1368 void ieee80211_handle_roc_started(struct ieee80211_roc_work
*roc
);
1370 /* interface handling */
1371 int ieee80211_iface_init(void);
1372 void ieee80211_iface_exit(void);
1373 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
1374 struct wireless_dev
**new_wdev
, enum nl80211_iftype type
,
1375 struct vif_params
*params
);
1376 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
1377 enum nl80211_iftype type
);
1378 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1379 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1380 void ieee80211_recalc_idle(struct ieee80211_local
*local
);
1381 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data
*sdata
,
1383 int ieee80211_do_open(struct wireless_dev
*wdev
, bool coming_up
);
1384 void ieee80211_sdata_stop(struct ieee80211_sub_if_data
*sdata
);
1386 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1387 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1389 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data
*sdata
)
1391 return test_bit(SDATA_STATE_RUNNING
, &sdata
->state
);
1395 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1396 void ieee80211_tx_pending(unsigned long data
);
1397 netdev_tx_t
ieee80211_monitor_start_xmit(struct sk_buff
*skb
,
1398 struct net_device
*dev
);
1399 netdev_tx_t
ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1400 struct net_device
*dev
);
1401 void ieee80211_purge_tx_queue(struct ieee80211_hw
*hw
,
1402 struct sk_buff_head
*skbs
);
1405 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data
*sdata
,
1406 struct ieee80211_sta_ht_cap
*ht_cap
);
1407 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data
*sdata
,
1408 struct ieee80211_supported_band
*sband
,
1409 struct ieee80211_ht_cap
*ht_cap_ie
,
1410 struct ieee80211_sta_ht_cap
*ht_cap
);
1411 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
1412 const u8
*da
, u16 tid
,
1413 u16 initiator
, u16 reason_code
);
1414 int ieee80211_send_smps_action(struct ieee80211_sub_if_data
*sdata
,
1415 enum ieee80211_smps_mode smps
, const u8
*da
,
1417 void ieee80211_request_smps_work(struct work_struct
*work
);
1419 void ___ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1420 u16 initiator
, u16 reason
, bool stop
);
1421 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1422 u16 initiator
, u16 reason
, bool stop
);
1423 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
, bool tx
);
1424 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1425 struct sta_info
*sta
,
1426 struct ieee80211_mgmt
*mgmt
, size_t len
);
1427 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1428 struct sta_info
*sta
,
1429 struct ieee80211_mgmt
*mgmt
,
1431 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1432 struct sta_info
*sta
,
1433 struct ieee80211_mgmt
*mgmt
,
1436 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1437 enum ieee80211_back_parties initiator
,
1439 int ___ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1440 enum ieee80211_back_parties initiator
,
1442 void ieee80211_start_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u16 tid
);
1443 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u8 tid
);
1444 void ieee80211_ba_session_work(struct work_struct
*work
);
1445 void ieee80211_tx_ba_session_handle_start(struct sta_info
*sta
, int tid
);
1446 void ieee80211_release_reorder_timeout(struct sta_info
*sta
, int tid
);
1448 u8
ieee80211_mcs_to_chains(const struct ieee80211_mcs_info
*mcs
);
1451 void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data
*sdata
,
1452 struct ieee80211_supported_band
*sband
,
1453 struct ieee80211_vht_cap
*vht_cap_ie
,
1454 struct ieee80211_sta_vht_cap
*vht_cap
);
1455 /* Spectrum management */
1456 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1457 struct ieee80211_mgmt
*mgmt
,
1460 /* Suspend/resume and hw reconfiguration */
1461 int ieee80211_reconfig(struct ieee80211_local
*local
);
1462 void ieee80211_stop_device(struct ieee80211_local
*local
);
1464 int __ieee80211_suspend(struct ieee80211_hw
*hw
,
1465 struct cfg80211_wowlan
*wowlan
);
1467 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1469 struct ieee80211_local
*local
= hw_to_local(hw
);
1471 WARN(test_bit(SCAN_HW_SCANNING
, &local
->scanning
),
1472 "%s: resume with hardware scan still in progress\n",
1473 wiphy_name(hw
->wiphy
));
1475 return ieee80211_reconfig(hw_to_local(hw
));
1478 /* utility functions/constants */
1479 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
1480 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
1481 enum nl80211_iftype type
);
1482 int ieee80211_frame_duration(enum ieee80211_band band
, size_t len
,
1483 int rate
, int erp
, int short_preamble
);
1484 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1485 struct ieee80211_hdr
*hdr
, const u8
*tsc
,
1487 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
,
1489 void ieee80211_xmit(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
1490 enum ieee80211_band band
);
1492 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1493 struct sk_buff
*skb
, int tid
,
1494 enum ieee80211_band band
);
1497 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1498 struct sk_buff
*skb
, int tid
,
1499 enum ieee80211_band band
)
1502 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
, band
);
1506 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data
*sdata
,
1507 struct sk_buff
*skb
, int tid
)
1509 struct ieee80211_chanctx_conf
*chanctx_conf
;
1512 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
1513 if (WARN_ON(!chanctx_conf
)) {
1519 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
,
1520 chanctx_conf
->def
.chan
->band
);
1524 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
,
1525 struct sk_buff
*skb
)
1527 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1528 ieee80211_tx_skb_tid(sdata
, skb
, 7);
1531 void ieee802_11_parse_elems(u8
*start
, size_t len
,
1532 struct ieee802_11_elems
*elems
);
1533 u32
ieee802_11_parse_elems_crc(u8
*start
, size_t len
,
1534 struct ieee802_11_elems
*elems
,
1535 u64 filter
, u32 crc
);
1536 u32
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
1537 enum ieee80211_band band
);
1539 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1540 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1541 void ieee80211_dynamic_ps_timer(unsigned long data
);
1542 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1543 struct ieee80211_sub_if_data
*sdata
,
1545 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data
*sdata
,
1546 struct ieee80211_hdr
*hdr
);
1547 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data
*sdata
,
1548 struct ieee80211_hdr
*hdr
, bool ack
);
1550 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1551 enum queue_stop_reason reason
);
1552 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1553 enum queue_stop_reason reason
);
1554 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1555 enum queue_stop_reason reason
);
1556 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1557 enum queue_stop_reason reason
);
1558 void ieee80211_propagate_queue_wake(struct ieee80211_local
*local
, int queue
);
1559 void ieee80211_add_pending_skb(struct ieee80211_local
*local
,
1560 struct sk_buff
*skb
);
1561 void ieee80211_add_pending_skbs_fn(struct ieee80211_local
*local
,
1562 struct sk_buff_head
*skbs
,
1563 void (*fn
)(void *data
), void *data
);
1564 static inline void ieee80211_add_pending_skbs(struct ieee80211_local
*local
,
1565 struct sk_buff_head
*skbs
)
1567 ieee80211_add_pending_skbs_fn(local
, skbs
, NULL
, NULL
);
1570 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1571 u16 transaction
, u16 auth_alg
, u16 status
,
1572 u8
*extra
, size_t extra_len
, const u8
*bssid
,
1573 const u8
*da
, const u8
*key
, u8 key_len
, u8 key_idx
);
1574 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data
*sdata
,
1575 const u8
*bssid
, u16 stype
, u16 reason
,
1576 bool send_frame
, u8
*frame_buf
);
1577 int ieee80211_build_preq_ies(struct ieee80211_local
*local
, u8
*buffer
,
1578 size_t buffer_len
, const u8
*ie
, size_t ie_len
,
1579 enum ieee80211_band band
, u32 rate_mask
,
1581 struct sk_buff
*ieee80211_build_probe_req(struct ieee80211_sub_if_data
*sdata
,
1582 u8
*dst
, u32 ratemask
,
1583 struct ieee80211_channel
*chan
,
1584 const u8
*ssid
, size_t ssid_len
,
1585 const u8
*ie
, size_t ie_len
,
1587 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
1588 const u8
*ssid
, size_t ssid_len
,
1589 const u8
*ie
, size_t ie_len
,
1590 u32 ratemask
, bool directed
, bool no_cck
,
1591 struct ieee80211_channel
*channel
, bool scan
);
1593 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data
*sdata
,
1594 const size_t supp_rates_len
,
1595 const u8
*supp_rates
);
1596 u32
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
1597 struct ieee802_11_elems
*elems
,
1598 enum ieee80211_band band
, u32
*basic_rates
);
1599 int __ieee80211_request_smps(struct ieee80211_sub_if_data
*sdata
,
1600 enum ieee80211_smps_mode smps_mode
);
1601 void ieee80211_recalc_smps(struct ieee80211_sub_if_data
*sdata
);
1603 size_t ieee80211_ie_split(const u8
*ies
, size_t ielen
,
1604 const u8
*ids
, int n_ids
, size_t offset
);
1605 size_t ieee80211_ie_split_vendor(const u8
*ies
, size_t ielen
, size_t offset
);
1606 u8
*ieee80211_ie_build_ht_cap(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
1608 u8
*ieee80211_ie_build_ht_oper(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
1609 const struct cfg80211_chan_def
*chandef
,
1611 u8
*ieee80211_ie_build_vht_cap(u8
*pos
, struct ieee80211_sta_vht_cap
*vht_cap
,
1613 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data
*sdata
,
1614 struct sk_buff
*skb
, bool need_basic
,
1615 enum ieee80211_band band
);
1616 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data
*sdata
,
1617 struct sk_buff
*skb
, bool need_basic
,
1618 enum ieee80211_band band
);
1620 /* channel management */
1621 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel
*control_chan
,
1622 struct ieee80211_ht_operation
*ht_oper
,
1623 struct cfg80211_chan_def
*chandef
);
1626 ieee80211_vif_use_channel(struct ieee80211_sub_if_data
*sdata
,
1627 const struct cfg80211_chan_def
*chandef
,
1628 enum ieee80211_chanctx_mode mode
);
1629 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data
*sdata
);
1630 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data
*sdata
);
1632 void ieee80211_recalc_smps_chanctx(struct ieee80211_local
*local
,
1633 struct ieee80211_chanctx
*chanctx
);
1635 #ifdef CONFIG_MAC80211_NOINLINE
1636 #define debug_noinline noinline
1638 #define debug_noinline
1641 #endif /* IEEE80211_I_H */